Paper treating unit and image forming system using the same

摘要

A paper treating unit includes: a paper loading table for loading paper; a first paper aligning member that regulates position of the paper by sliding back and forth in the paper proceeding direction; a second paper aligning member disposed upstream of the first paper aligning member in the paper proceeding direction to regulate the position of the paper in the paper proceeding direction; a third paper aligning member disposed along the paper proceeding direction to regulate the position of the paper in a width direction perpendicular to the paper proceeding direction by sliding back and forth in the direction perpendicular to the paper proceeding direction; and a position detecting unit that detects the position of the first to third paper aligning members. The first and third paper aligning members are disposed independently of the paper loading table.